Initialization.cpp revision 80232dd16c0affb2afae01cde6c94abf23ac1ba8 
1/*
2 * Copyright 2012, The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *     http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17#include "bcc/Support/Initialization.h"
18
19#include <cstdlib>
20
21#include <llvm/Support/ErrorHandling.h>
22#include <llvm/Support/TargetSelect.h>
23
24#include "bcc/Config/Config.h"
25#include "bcc/Support/DebugHelper.h"
26
27namespace {
28
29void llvm_error_handler(void *pUserData, const std::string &pMessage) {
30  ALOGE("%s", pMessage.c_str());
31  ::exit(1);
32}
33
34} // end anonymous namespace
35
36void bcc::init::Initialize() {
37  static bool is_initialized = false;
38
39  if (is_initialized) {
40    return;
41  }
42
43  // Setup error handler for LLVM.
44  llvm::remove_fatal_error_handler();
45  llvm::install_fatal_error_handler(llvm_error_handler, NULL);
46
47#if defined(PROVIDE_ARM_CODEGEN)
48  LLVMInitializeARMAsmPrinter();
49  LLVMInitializeARMTargetMC();
50  LLVMInitializeARMTargetInfo();
51  LLVMInitializeARMTarget();
52#endif
53
54#if defined(PROVIDE_MIPS_CODEGEN)
55  LLVMInitializeMipsAsmPrinter();
56  LLVMInitializeMipsTargetMC();
57  LLVMInitializeMipsTargetInfo();
58  LLVMInitializeMipsTarget();
59#endif
60
61#if defined(PROVIDE_X86_CODEGEN)
62  LLVMInitializeX86AsmPrinter();
63  LLVMInitializeX86TargetMC();
64  LLVMInitializeX86TargetInfo();
65  LLVMInitializeX86Target();
66#endif
67
68#if USE_DISASSEMBLER
69  InitializeDisassembler();
70#endif
71
72  is_initialized = true;
73
74  return;
75}
76